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-rw-r--r--include/errors.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/errors.h b/include/errors.h
index 961ecf1..c8576f0 100644
--- a/include/errors.h
+++ b/include/errors.h
@@ -5,6 +5,9 @@
#include "_attrs.h"
+void usage(const char *, ...);
+#define usage(...) usage(__VA_ARGS__, nullptr)
+
[[gnu::format(printf, 1, 2)]] void warn(const char *, ...);
void vwarn(const char *, va_list);